Concealed elongating hinge



Dec. 5,1939. D. .5. REA I 2,182,704

CONCEALED ELON GATING HINGE Filed Nov. 9, 1921-8 7 25 FIG. 2. m A is 17r 2290 p 5 l INVENTOR.

1.5 22 Delberfi: .lRaa.

lever connections alongsaid curvilinear paths. 2i being substantiallyequivalent to the area of 30 Other objects and advantages of theinvention a corresponding cross-section of the lever 25. 30 W be ppduring e following de- Pivotally securing the levers in crossed relationta led description, taken in 9011116051011 With e intermediate theirshank and link end portions accompanying drawing, m ng a part of this isa pintle 30. At their link end portions the s ecification. and in whichdrawing: levers 2 i25 are pivotally secured to the knuckles 35 Fi r 1 isa p p v v w of a hin e em- |s m, respectively, as by pintles 31, theshank 35 Patented Dec. 5, 1939 I Q UNITED PATENT OFFiCE' CQNCEALEDELONGATING HINGE Delbert J. Rea, Detroit, Mich.

Application November 9, 1938, Serial No. 239,727

3 Claims. (01. 16-164) The invention relates to improvements inconviews, the letter A generally designates the hinge, cealed elongatinghinges and the primary object B a closure frame, and C a closure.

is to provide a hinge having improved elongating Referring to the hingeA, the same comprises or throw-out lever connections with the hinge apair of butts IE-l I provided with openings 12 5 butts. for securing thebutts, as by screws 53, to the 5 Another object of the invention residesin the closure C and frame B. Inthe example shown, provision of aconcealed elongating hinge for the butt Iii is secured to the frame Band the butt hanging closures, such as automobile doors, the i! is fixedto the closure C. Projecting from the hinge being so constructed thatthe initial openinner faces of the butts Ill-J1, at the pivotal 1O ingswing of the closure will occur about a single ends thereof, arespaced-apart knuckles l i-l5, 1o pintle to permit clearance of theclosure relative respectively, the free end portions of the butts to itsframe or jamb, after which the elongating i!Jll being provided withtransverse openings or throw-out movement will take place about a !5ll,respectively, of rectangular shape. The plurality of pintles. Wallsbounding the openings i6i'i form edges A further object of the inventionis to provide l8-'-ii3 and 2ii2l, respectively, at diagonally op- 15 ahinge having elongating or throw-out lever posite extremities of theopenings, the edge if of connections with the hinge butts and whichconthe opening 51 constituting the outer end of a nections are eachpivotally secured to one hinge tooth 22 defined by an oblique face orwall 23 of butt and slidable in a curvilinear path thru an the openingI1.

opening extending transversely of the other hinge Connecting the buttsill-l I for swinging move-- 20 butt. ment relative to one another is aplurality of A still further object is to provide a hinge of crossedlevers 24-25, each comprising a link end the character described havinglever connections portion 28 and an angularly disposed shank endslidable in curvilinear paths thru openings transportion 21 havingtapering or convergent oppo- 25 versely of the hinge butts, the leverconnections site faces 28Z9. In the example shown, two 25 havingopposite faces so tapered as to constantly levers 2 5 are disposed inspaced relation with a engage the walls bounding said transverseopensingle lever 25 interposed therebetween, the coinings during variousstages of movement of the bined areas of given cross-sections of thelever:

ying y invention, the pa s being illustrated end portions of the levers24-25 being slidaoly in closed relationship. disposed in the openingsifil 1 respectively. The

Figure 2 i view, partly in top plan and partly lever 25 is reduced alongits shank end portion in horizontal section, of the hinge, and showingas by fo l'ml g a notch 32 in the face this 40 its application to aclosure, the parts being in notchbemg defined by an arcuate wall athaving 40 their closed relation. 3 Tadllls R i lly equal to the distanceFigure. 3 is a vertical sectional view taken subbetween the plntle 3|earned y the knuckle is stantially on the line 33 of Figure 2. d theedge 2! of the tooth 22, and conformmg 1 w showin to the pivotalswinging movement of the tooth Flgure 4 1S ahonzontal Sectwna' we g 22about the pintle, whereby the notch 32 may 45 i fun i 2; i i fi ig i giig gifj accommodate the tooth 22 between predetermined lntermedlate 61111 t t d stages of angular swinging movement of the butt ment and theoifs et or throw-ou movemen an I I. in broken lines illustratmg therelat1onsh1p of From an inspection of the drawing, it will be pardllrlng a Stage of Sand Ofiset or throw'out seen that the shank endportions 2! are so tapered 50 mov toward their free ends as to remain inconstant In the drawi w i for the purpose of illuscontact, at theiropposite faces za 29, with the tration shows only a preferred embodlment0f the respective edges I8I9 and 20-2l, during all invention, andwherein similar reference characstages of angular swinging movement ofthe butts ters denote corresponding parts throughout the I [IH with theexception of those stages of 55 angular swinging movement of the butt H,in which the tooth 22 is partially or wholly disposed within the notch32. In other words, the sections of the shank end portions 21 includedbetween the edges I8l9 and --2l, as formed by the intersections of theplanes P, are of constant dimensions substantially equalling that of thedistance between said edges, due to the fact that the variable angularposition of the shank end portions relative to the openings l6-l'!during movement of the shank end portions in curvilinear paths asgoverned by the pintles 38-31 is compensated by the variablecross-sectional width of said shank end portions disposed in saidopenings during various stages of movement of the shank end portionsalong said curvilinear paths, except that those sections, such as thatformed by the intersection of the plane P, between the edges 20-2l,during stages of movement of the lever at one end portion of itscurvilinear path, have dimensions less than that of the distance betweensaid edges 20-21, whereby the butt H may independently swing about itspintle 3| for a predetermined distance at the beginning of its openingmovement and at the end of its closing movement.

In swinging the closure C to an open position, the butt II will firstswing from the position shown in Figure 2 to that illustrated in Figure4 without affecting the relative positioning of the remaining parts ofthe hinge, and without any offset or elongating action, whereby theclosure C may clear the closure frame B. Then, as shown in Figure 4, theedges 2lJ-2l of the butt H slidably contact the faces 28-29 of the levershank in a manner whereby further opening movement of the hinge willbring about the desired elongating or throw-out action between thepivoted link end portions and the sliding shank end portions connectingthe butts. On the return swing of the closure C, the edge 2! slidablyforces the levers 24-25 into their normal closed positions, at whichtime the edge 2| is disposed adjacent the entrance of the notch 32, thusallowing the butt II to complete its final closing movement, withoutaffecting the remaining parts of the hinge, this final movement beingthe same as the action of a single pintle hinge, whereby the closure mayswing into its frame without requiring more than the usual angle orbevel therein.

Various changes may be made in the form of the invention herein shownand described, without departing from the spirit of the invention, orthe scope of the following claims.

I claim:

1. A hinge construction comprising a pair of butts having openingstransversely therethrough, said openings being defined at opposite sidesof said butts by edges, a plurality of levers each including a link endportion and a shank end portion, means pivotally connecting said leversin crossed relation intermediate their end portions, means pivotallyconnecting said levers at their link end portions each to one of saidbutts, said shank end portions including convergent faces contactingsaid edges at opposite sides of said butts, said shank end portionsbeing movable in curvilinear paths as governed by said pivot means tovary the angular and axial relationship of said shank end portions tosaid openings, the sections included between said edges during variousstages of movement of said shank end portions relative to said openingshaving a constant dimension substantially equalling that of the distancebetween said edges.

2. A hinge construction comprising a pair of butts having openingstransversely therethrough, said openings being defined at opposite sidesof said butts by edges, a plurality of levers each including a link endportion and a shank end portion, means pivotally connecting said leversin crossed relation intermediate their end portions, means pivotallyconnecting said levers at their link end portions each to one of saidbutts, said shank end portions including convergent faces contactingsaid edges at opposite sides of said butts, said shank end portionsbeing movable in curvilinear paths as governed by said pivot means tovary the angular and axial relationship of said shank end portions tosaid openings, the sections included between said edges during variousstages of movement of said shank end portions relative to said openingshaving a constant dimension substantially equalling that of the distancebetween said edges, a given one of said shank end portions beingprovided with a reduced portion receiving one of said edges, wherebythose sections included between the edges contiguous to the given shankend portion during stages of movement at one end of the curvilinear pathof the given shank end portion have dimensions less than that of thedistance between said edges.

3. A hinge construction comprising a pair of butts including cam wallsdefining openings extending transversely through said butts, a given oneof said butts including a cam wall formed with a tooth, a plurality oflevers each including a link end portion and a shank end portion, meanspivotally connecting said levers in crossed relation intermediate theirend portions, means pivotally connecting said levers at their link endportions each to one of said butts, said shank end portions includingconvergent faces each slidably contacting the cam walls of one of saidopenings whereby said shank end portions, upon relative swingingmovement of said butts, are moved along curvilinear paths transverselyof said butts, one of said shank end portions being provided in one ofits convergent faces with a notch for the accommodation of said tooth,said notch being defined by an arcuate wall conforming to the arcuatemovement of said tooth about the pivotal axis of said given butt.

DELBERT J. REA.

